Master project
4.5.1 assembled fire pump adapter installation should be in accordance with the interface, the body, the coupling pipe, check valve , safety valve , vent pipe, control valve in the order of the check valve installation direction should make fire water from Fire pump adapter into the system; Integral fire pump adapter installation, according to their use installation instructions.
Check quantity: check all.
Inspection method: observe the inspection.
4.5.2 fire pump adapter installation should meet the following requirements:
1 It should be installed on the sidewalk or non-motorized vehicle approaching the fire engine and the distance from outdoor fire hydrant or fire-fighting water pool should be 15 ~ 40m. Inspection method: observe the inspection.
2 Automatic sprinkler system fire pump adapter should be set with the fire hydrant system fire pump adapter permanent fixed mark, and a partition mark. Check quantity: check all. Inspection method: observe the inspection.
3 Underground fire pump adapters shall be constructed of cast iron manhole covers marked with "fire pump adapter" and shall be provided with permanently fixed marks in the vicinity to indicate their position. Check quantity: check all. Inspection method: observe the inspection.
4 wall fire pump adapter installation should meet the design requirements. When the design is not required, the installation height should be 0.7m from the ground. The clear distance from the walls, doors, windows, holes and holes should not be less than 2.0m and should not be installed below the glass curtain wall.
Check quantity: check all.
Inspection methods: observation inspection and ruler inspection.
4.5.3 underground fire pump adapter installation, the distance between the inlet and the bottom of the manhole cover should not exceed 0.4m, and should not be less than the radius of the manhole cover.
Check quantity: check all.
Inspection method: ruler inspection.
General project
4.5.4 underground fire pump adapter well masonry should be waterproof and drainage measures.
Check quantity: check all.
Inspection method: observe the inspection.
Near the Mid Autumn Festival, various moon cake iron boxes with exquisite patterns can be seen everywhere. The moon cake iron boxes on the market are getting better and better each year. Of course, a good Iron Box is not measured by its beautiful appearance, but by its good quality. Good quality. We can use it again after using it. Then, how to judge whether the quality of the iron box has reached the standard?
When we first see the iron box, we will have an objective judgment on the box. The first thing we see is the surface of the iron box. The information reflected on the box surface, such as patterns, printing, barcodes, models and specifications, is not randomly placed. It has certain rules. The randomly printed iron box is already unqualified on the surface. Again, check the box surface for scratches, and the printed surface shall not be greater than 0.3mm * 20mm. On the front side, the pattern of the product surface is placed directly in front of and below the sunlight. In addition to the main viewing surface of the box, you can also see the inner surface, side, bottom, etc.
The above are the tips that can manufacturers share with you on how to judge whether boxes are standard. Have you learned?
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Dongguan Tielangtou Hardware Products Co., Ltd , https://www.tinboxtlt.com